diff options
| author | Jason Wright <jason@cvs.openbsd.org> | 2003-10-13 21:19:30 +0000 |
|---|---|---|
| committer | Jason Wright <jason@cvs.openbsd.org> | 2003-10-13 21:19:30 +0000 |
| commit | ad8a74c2855b5cbe7c418d22a1a4f702e9626f00 (patch) | |
| tree | 7ed65229091e318a04f3f326b2405322085cc2a6 /sys | |
| parent | 224fac3f4c57b15226bf7549c5596ba485b1bf39 (diff) | |
rx checksum offload support (based on the freebsd implementation)
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/if_em.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/sys/dev/pci/if_em.c b/sys/dev/pci/if_em.c index e4dc5f7e5e7..90a568e99e8 100644 --- a/sys/dev/pci/if_em.c +++ b/sys/dev/pci/if_em.c @@ -32,7 +32,7 @@ POSSIBILITY OF SUCH DAMAGE. ***************************************************************************/ /*$FreeBSD: if_em.c,v 1.26 2003/06/05 17:51:37 pdeuskar Exp $*/ -/* $OpenBSD: if_em.c,v 1.12 2003/10/05 21:58:42 henric Exp $ */ +/* $OpenBSD: if_em.c,v 1.13 2003/10/13 21:19:29 jason Exp $ */ #include "bpfilter.h" #include "vlan.h" @@ -2730,6 +2730,21 @@ em_receive_checksum(struct em_softc *sc, } return; +#else /* __FreeBSD__ */ + /* 82543 or newer only */ + if ((sc->hw.mac_type < em_82543) || + /* Ignore Checksum bit is set */ + (rx_desc->status & E1000_RXD_STAT_IXSM)) + return; + + if ((rx_desc->status & (E1000_RXD_STAT_IPCS|E1000_RXD_ERR_IPE)) == + E1000_RXD_STAT_IPCS) + mp->m_pkthdr.csum |= M_IPV4_CSUM_IN_OK; + + if ((rx_desc->status & (E1000_RXD_STAT_IPCS|E1000_RXD_ERR_IPE| + E1000_RXD_STAT_TCPCS|E1000_RXD_ERR_TCPE)) == + (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_IPCS)) + mp->m_pkthdr.csum |= M_TCP_CSUM_IN_OK | M_UDP_CSUM_IN_OK; #endif /* __FreeBSD__ */ } |